package collection;
/**集合转换为数组*/
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;

public class CollectionToArray {
    public static void main(String[] args) {
        Collection<String> c=new ArrayList<>();
        c.add("one");
        c.add("teo");
        c.add("three");
        c.add("four");
        c.add("five");
        System.out.println(c);//[one,two,three,four,five]

        String[] array=c.toArray(new String[c.size()]);
        System.out.println(Arrays.toString(array));
    }
}
